(19)
(11) EP 4 581 096 A1

(12)

(43) Date of publication:
09.07.2025 Bulletin 2025/28

(21) Application number: 23755536.2

(22) Date of filing: 25.07.2023
(51) International Patent Classification (IPC): 
C09K 8/528(2006.01)
C09K 8/54(2006.01)
(52) Cooperative Patent Classification (CPC):
C09K 8/528; C09K 8/54; C09K 2208/32
(86) International application number:
PCT/US2023/028612
(87) International publication number:
WO 2024/049583 (07.03.2024 Gazette 2024/10)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
KH MA MD TN

(30) Priority: 31.08.2022 US 202263402615 P

(71) Applicant: ECOLAB USA INC.
St. Paul, MN 55102 (US)

(72) Inventors:
  • GARCIA, Juan, Manuel, III
    Sugar Land, TX 77478 (US)
  • DHAWAN, Ashish
    Aurora, IL 60502 (US)
  • SILVERNAIL, Carter, Martin
    Lakeville, MN 55044 (US)
  • MARQUEZ, Maria, DeJesus
    Houston, TX 77095 (US)
  • WOOD, Emily, Rebecca
    Naperville, IL 60563 (US)
  • ZENASNI, Oussama
    Richmond, TX 77407 (US)
  • MUKKAMALA, Ravindranath
    Sugar Land, TX 77479 (US)
  • MASERE, Jonathan
    Richmond, TX 77407 (US)
  • COLORADO, Ramon, Jr.
    Stafford, TX 77477 (US)

(74) Representative: HGF 
HGF Limited 1 City Walk
Leeds LS11 9DX
Leeds LS11 9DX (GB)

   


(54) COMPOSITIONS AND METHODS FOR DISSOLVING IRON SULFIDE AND INHIBITING CORROSION